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Syncfusion Feedback
Platform : WinForms
Category : Type Editors

How can I allow my user to add more than 1 type of object to my collection, during design-time?

The default CollectionEditor will allow your user to add objects of type returned by your collection’s indexer method.

You can make this CollectionEditor allow your user to pick the type of object to add by deriving from CollectionEditor and making the change as shown below. This will introduce a drop-down in the editor’s "Add" button to allow the user to pick the type he wants to add.

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